directional gyroscope [ directional gyro | heading indicator | directional | direction indicator | gyro direction indicator | directional gyro indicator | self-levelling free gyroscope corrected for drift ]
conservateur de cap [ gyroscope directionnel | gyro directionnel | directionnel | gyroscope de direction | gyroscope directionnel garde-cap | garde-cap ]
Flight Instruments and Equipment (Aeroindustry) | Aircraft Piloting and Navigation | Navigation Instruments
Instruments et équipement de bord (Constructions aéronautiques) | Pilotage et navigation aérienne | Instruments de navigation